Decode and Encode Base64 in Go

Go supports base64 encoding/decoding out of the box with the built-in encoding/base64 package. See code snippets below.

Decoding Base64 string to text

package main

import (
  "encoding/base64"
  "fmt"
)

func main() {
  base64text := "aHR0cHM6Ly9lYXN5NjQub3Jn"

  decodedText, _ := base64.StdEncoding.DecodeString(base64text)

  fmt.Println(decodedText)
}

Encoding Base64 string

package main

import (
  "encoding/base64"
  "fmt"
)

func main() {
  textToEncode := "Go is cool"

  base64text := base64.StdEncoding.EncodeToString([]byte(textToEncode))

  fmt.Println(base64text)
}